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Hot Sauce NARC 01-26-2010 03:26 AM

260 remington
Im seriously contemplating having my remmy 700 .308 in to a custom target rig. I would like to shoot F-class or similar style competition some day but i need practice and experience first. This rifle wont be used for hunting except for an ocasional yote. Now i like the .308 but for long range accuracy im learning that it is not ideal. I am having trouble deciding if 260 remington is a good choice for such an application. I cant really seem to find much load data or ballistic table info to support its claim to superiority over the .308 for this cartridge, but everything i read says its better faster flatter. One article i read claimed that the 260 could be loaded to beat the 300wm in drop in wind drift out to 100 yards. Is this round really that much better than the .308win ?
I really like the fact that this round can easily be used in .308 actions, and the barrell life seems to be somewhat decent compared to other long range target rounds in 6.5mm. would you stay with 308 for this build, go for the .260 or should i look to another cartridge?

Hot Sauce NARC 01-26-2010 04:59 PM

Is there any reason i shouldnt go with 260 Rem over .308 Win is probably a better question.

robocop10mm 01-26-2010 05:18 PM

A buddy had a .260 rifle built that was truly a one hole gun at 100yds. After many, many hundreds of rounds it started shooting cloverleafs. A VERY good cleaning with Shooters Choice bore solvent brought it back. He was unable to "shoot out" the barrel, just foul it up. He swears by it. I have shot 100 yd grasshoppers off the target stand with that rifle, amazing. I don't know about longer ranges though.

cpttango30 01-26-2010 05:49 PM

.260 Rem.

Federal, Remington and Speer are offering factory loads for the .260 Remington. Bullet weights offered are 120 grains (SD = .246) and 140 grains (SD = .287). The handloader also has 87-100 grain, 125 grain, 129-130 grain, 150 grain, and 160-165 grain hunting bullets from which to choose.

Generally speaking, the 87-100 grain bullets are for varmints and small predators, the 120-130 grain bullets are intended for medium size deer, sheep, goats, and antelope, the 140 grain bullets are the favorite choice for larger or tougher animals like wild boar, black bear, and caribou, and the heavy 150-165 grain bullets are for the largest non-dangerous game.

The Federal, Remington, and Speer factory loads using 140 grain bullets all have a MV of 2,750 fps and a ME of 2,350 ft. lbs. Zero a scoped hunting rifle to hit 2.7" high at 100 yards and it should hit about 3" high at 130 yards, 1.7" high at 200 yards, and 3" low at 275 yards. Notable for use on tough game are the Federal Trophy Bonded and the Speer Grand Slam bullets in this weight. The 140 grain factory loads have the power to take large game like caribou at ranges in excess of 200 yards.

Here are some specifications of interest to reloaders: bullet diameter .264", maximum COL 2.800", maximum case length 2.035", trim to 2.025"

The .260 is easy to reload and works best with medium-slow to slow burning rifle powders. Recommended powders include H4350, IMR 4831 and RL-15 powders for light bullets and IMR 7828, H1000, and H4831 powders for heavy bullets.

Reloading data from the Hodgdon Powder Number 27 Data Manual for the 120 grain Speer spitzer bullet shows a MV of 2814 fps using 43.5 grains of H4350 powder, and a MV of 2960 fps in front of a maximum load of 46.5 grains of H4350 powder. Pressure was measured at 58,200 psi with the latter load. These would be excellent long range loads for the medium size species of big game.

Hodgdon's reloading data for the 125 grain Nosler Partition bullet shows a MV of 2725 fps using 45.0 grains of H4831 powder, and a MV of 2862 fps with a maximum charge of 48.0 grains of the same powder. Pressure was measured at 58,000 psi with the maximum load.

Hodgdon's reloading data for the 140 grain Nosler Partition spitzer bullet shows a MV of 2619 fps with 48.0 grains of H1000 powder and a MV of 2730 fps in front of a maximum load of 50.5 grains of H1000. The pressure of the latter load was 57,000 psi. Remington cases and 9 1/2 primers were used to develop all of the Hodgdon loads quoted here.

If you use one of the 140gr BTHP from Berger or Sierra you will be good to go out to 1k. yes they are that much better than the 308.

If I remember I will scan my sierra manual pages for the 260 & 308 for a comparison.

Hot Sauce NARC 01-26-2010 05:56 PM

great data thanks Tango

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